HOLYOKE -- An electrical issue touched off the New Year's Day fire that killed three people and destroyed a five-story apartment building, officials said Wednesday.

Investigators traced the fire's origin to a wall outlet in the living room of a third-floor apartment, State Fire Marshal Peter J. Ostroskey said at a press conference at Holyoke Fire Department headquarters.

None of the three people killed in the fire were found in the apartment where the fire began, Holyoke Fire Chief John A. Pond said.

Killed in the blaze were Holyoke residents Maria Cartagena, 48, and Jorge Munoz, 55, as well as 34-year-old Easthampton resident Trevor R. Wadleigh.

The three victims were on the building's fourth and fifth floors, officials said.

The Jan. 1, 2017 fire at 106 North East St. was reported shortly before 9 a.m.

1/4/2017 -Holyoke- State and Holyoke officials held a press conference at fire department headquarters to announce that the cause of the fatal New Years Day fire on North East Street was electrical. At the podium is State Fire Marshal Peter J. Ostroskey. (Don Treeger / The Republican) Don Treeger | dtreeger@repub.com

Ostroskey and Pond were joined at the announcement by Holyoke Mayor Alex B. Morse, Holyoke Police Lt. James Albert and city Building Commissioner Damian J. Cote.

The Holyoke police and fire departments probed the fire's cause in conjunction with Massachusetts State Police assigned to the state fire marshal's office and the Hampden district attorney's office.

Officials indicated earlier this week they did not believe the fire was intentionally set. "The facts as we know now, this is not a criminal investigation," Hampden District Attorney Anthony Gulluni said Monday.

According to city and state records, the building is owned by Irshad Sideeka of Brookline, Massachusetts and his company, Naviah Investments. Sideeka purchased the building in April 2011.

This is a developing story that will be updated after further reporting.